SOLUTION: I need help w/ this problem. Much appreciated. : ) Multiply: (x+1)^3

Algebra ->  Exponents -> SOLUTION: I need help w/ this problem. Much appreciated. : ) Multiply: (x+1)^3       Log On


   

Question 50499: I need help w/ this problem. Much appreciated. : )
Multiply:
(x+1)^3
Answer by AnlytcPhil(1808) About Me  (Show Source):
You can put this solution on YOUR website!
I need help w/ this problem. Much appreciated. : )

       Multiply: 
                (x+1)³

   (x + 1)(x + 1)(x + 1)

FOIL the second and third parentheses, leaving
the first alone:

   (x + 1)(x² + 2x + 1)

Now multiply each of the 2 terms in the first parentheses
by each of the 3 terms in the second:

   x³ + 2x² + x + x² + 2x + 1

Combine like terms:

   x² + 3x² + 3x + 1  

Edwin